7 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU
About 7 Heol Y Twyn
7 Heol Y Twyn is a three-bedroom mid-terrace house in Pontlliw, Swansea, Swansea (SA4 9EU). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (April 2014) shows a C (score 70). When first surveyed in February 2012 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Good; while roof efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 88). The latest certificate is from April 2014, so improvements made since then won't be reflected. Other recorded features include a conservatory.
Across 2002–2014, sale prices on this property compounded at 8.9% per year. Today's modelled estimate of £145,000 sits 66.7% above the 2014 sale of £87,000. On a £-per-square-foot basis, the last sale (£109/sq ft) was about 16.8% below the postcode norm. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). 12 years since the last transfer (May 2014).
What this property has
Inside
- Bedrooms3
- ConservatoryYes
Outside
- Private gardenYes
Energy performance
7 Heol Y Twyn's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 22 Apr 2024
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
7 Heol Y Twyn has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Sale price has at least doubled since 2002.
£145,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.9% per year over 12 years.
£87,000
Growth on file: 8.9% per year over 12 years.
Sales timeline
27 May 2014Most recent
£87,000
-8.4%over 6 years14 December 2007
£95,000
+196.9%over 5 years21 August 2002
£32,000
Median price across the last 5 sales in SA4 9EU: £142,500 (2025–2022).
Nearby sales in SA4 9EU
21 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU
Sold Apr 2025
£128,00018 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU
Sold Dec 2024
£165,00122 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU
Sold Apr 2024
£164,00038 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU
Sold Mar 2024
£136,0001 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU
Sold Oct 2022
£142,500
Versus other Heol Y Twyn homes
7 Heol Y Twyn is notably below the street on price per m².
Price per m²
£1,176
Street avg £1,748
Floor Area
74 m²
Street avg 71 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.4 t/year
Street avg 3.3 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Post Office — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







